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LAN8814
  • LAN8814

LAN8814

In Production

The LAN8814 is a low-power, quad-port triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physical layer transceiver (PHY) that supports transmission and reception of data on standard CAT-5, as well as CAT-5e and CAT-6, unshielded twisted pair (UTP) cables.The LAN8814 supports industry-standard QSGMII (Quad Serial Gigabit Media Independent Interface) and Q-USGMII (Quad Universal Serial Gigabit Media Independent Interface) providing chip-to-chip connection to four Gigabit Ethernet MACs using a single serialized link (differential pair) in each direction.The LAN8814 supports high-accuracy timestamping functions to support IEEE-1588 solutions using Microchip Ethernet switches, as well as customer solutions based on SoCs and FPGAs. The LAN8814 also provides Synchronous Ethernet (SyncE) and ...

Microchip Technology LAN8814 Product Info

16 April 2026 0

Parameters

Automotive

No

DownstreamPorts

4

Energy Efficient Ethernet

Yes

EtherCAT

No

Port Speed

10/100/1000Mbps

Fiber Support

No

HP Auto MDIX

Yes

On-Chip Termination

Yes

InterfaceUpStream

QSGMII/Q-USGMII

Internal Regulator

Yes

LinkMDCableDiag

Yes

MACsec

No

Supply Voltages

2.5

SyncE

Yes

Temperature Range Max

125

Temperature Range Min

-40

Digital I/O Voltage

1 (differential)

WakeonLAN

No

IEEE 1588 v2

Yes

Features

  • One and two-step IEEE1588 time stamping
  • Quad-Port Gigabit Ethernet transceiver
  • Low-power operation
  • On-chip temperature monitor
  • Supports TSN frame preemption
  • On-chip LDO for single supply operation
  • 128-pin TQFP
  • Commercial and Industrial Temperature versions
  • Description

    The LAN8814 is a low-power, quad-port triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physical layer transceiver (PHY) that supports transmission and reception of data on standard CAT-5, as well as CAT-5e and CAT-6, unshielded twisted pair (UTP) cables.

    The LAN8814 supports industry-standard QSGMII (Quad Serial Gigabit Media Independent Interface) and Q-USGMII (Quad Universal Serial Gigabit Media Independent Interface) providing chip-to-chip connection to four Gigabit Ethernet MACs using a single serialized link (differential pair) in each direction.

    The LAN8814 supports high-accuracy timestamping functions to support IEEE-1588 solutions using Microchip Ethernet switches, as well as customer solutions based on SoCs and FPGAs. The LAN8814 also provides Synchronous Ethernet (SyncE) and TSN frame preemption support.


    Microchip's complimentary and confidential MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

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